Results 211 to 220 of about 2,199,494 (228)
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Ballistic Limit Velocity and Impact Energy Absorption from Microns to Millimeters
2024 17th Hypervelocity Impact SymposiumAbstract The Laser-Induced Particle Impact Test (LIPIT) can be used to probe projectile, target, and synergistic projectile-target responses under high strain rate deformation at the microscale. LIPIT’s advantages over other microscale launching techniques include the ability to controllably launch a single microparticle and precisely ...
Jacob A. Rogers +6 more
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Current Nanoscience, 2009
Here we show the fundamental processes on nanoscale that may influence the design and extension of nanotechnology chips, sensors, and systems. The focus is on the breakdown of Ohms Law in nanoscale devices extensively being used to assess the performance of a “system-on-a-chip,” may it be ...
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Here we show the fundamental processes on nanoscale that may influence the design and extension of nanotechnology chips, sensors, and systems. The focus is on the breakdown of Ohms Law in nanoscale devices extensively being used to assess the performance of a “system-on-a-chip,” may it be ...
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International Journal of Impact Engineering, 2012
Abstract This paper presents an experimental and numerical study to estimate ballistic limit velocity, V 50 , of plain-weave hybrid S2-glass-IM7 graphite fibers/toughened SC-79 resin composite beams. The tests were conducted on hybrid S2-glass-IM7 graphite fibers/toughened SC-79 resin and non-hybrid S2 glass-fiber/toughened SC-79 resin composites ...
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Abstract This paper presents an experimental and numerical study to estimate ballistic limit velocity, V 50 , of plain-weave hybrid S2-glass-IM7 graphite fibers/toughened SC-79 resin composite beams. The tests were conducted on hybrid S2-glass-IM7 graphite fibers/toughened SC-79 resin and non-hybrid S2 glass-fiber/toughened SC-79 resin composites ...
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Ballistic limit velocity of empty rectangular metal columns under a blunt projectile penetration
The Journal of Defense Modeling and Simulation: Applications, Methodology, Technology, 2015This paper studies the ballistic limit velocity of empty rectangular columns under a blunt projectile penetration, theoretically and numerically. The deformation mechanism of the empty column is considered as plugging. The projectile is assumed to be a flat-ended cylinder without deformation.
Abbas Niknejad, Amin Zareei
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Review of Scientific Instruments, 2001
A new gas gun technique has been developed in which a small mass fragment is impacted in a precise orientation by a thin metal disk and then recovered. The metal disk is placed inside a hollow sabot that also contains a miniature soft-recovery chamber. After impact, the sabot with the fragment inside is recovered in rags.
Willis Mock, William H. Holt
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A new gas gun technique has been developed in which a small mass fragment is impacted in a precise orientation by a thin metal disk and then recovered. The metal disk is placed inside a hollow sabot that also contains a miniature soft-recovery chamber. After impact, the sabot with the fragment inside is recovered in rags.
Willis Mock, William H. Holt
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Metals and Materials International, 2020
Friction stir welding has the advantages of producing less material deformation and of simple joining of relatively thick materials, but the disadvantages of forming relatively large heat-affected zones around weld areas. In addition, in research on reductions in bulletproof performance in heat-affected zones, it is necessary to evaluate the ballistic ...
Changhyun Cho +5 more
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Friction stir welding has the advantages of producing less material deformation and of simple joining of relatively thick materials, but the disadvantages of forming relatively large heat-affected zones around weld areas. In addition, in research on reductions in bulletproof performance in heat-affected zones, it is necessary to evaluate the ballistic ...
Changhyun Cho +5 more
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Polymer Composites
Abstract Glass fiber reinforced plastics (GFRPs) is a key material for the outer protecting layer of ships as well as for energy storage tanks. Its ballistic and blast resistance is closely related to the inclusion structure of its glass fiber and polyester matrix, however, the related ...
Di Lei +7 more
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Abstract Glass fiber reinforced plastics (GFRPs) is a key material for the outer protecting layer of ships as well as for energy storage tanks. Its ballistic and blast resistance is closely related to the inclusion structure of its glass fiber and polyester matrix, however, the related ...
Di Lei +7 more
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2011
In this study, 152.4 mm by 101.6 mm (6”×4”) GLARE 5 plates with various thicknesses were impacted by a 0.22 caliber bullet-shaped projectile using a high-speed gas gun. Velocities of the projectile along the ballistic trajectory were measured at different locations throughout the test using (1) a pair of laser-beam optoelectronic paths near the gun ...
A. Seyed Yaghoubi +2 more
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In this study, 152.4 mm by 101.6 mm (6”×4”) GLARE 5 plates with various thicknesses were impacted by a 0.22 caliber bullet-shaped projectile using a high-speed gas gun. Velocities of the projectile along the ballistic trajectory were measured at different locations throughout the test using (1) a pair of laser-beam optoelectronic paths near the gun ...
A. Seyed Yaghoubi +2 more
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2019
In the present work, natural fibers of mallow (Urena Lobata, Linn) were used in percentages of 0, 10, 20, and 30% vol. for ballistic application in epoxy matrix composites. The ballistic efficiency of these composites was evaluated through the measurement of the absorbed energy and the velocity limit, after impact of 7.62 mm ammunition, in order to ...
Lucio Fabio Cassiano Nascimento +4 more
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In the present work, natural fibers of mallow (Urena Lobata, Linn) were used in percentages of 0, 10, 20, and 30% vol. for ballistic application in epoxy matrix composites. The ballistic efficiency of these composites was evaluated through the measurement of the absorbed energy and the velocity limit, after impact of 7.62 mm ammunition, in order to ...
Lucio Fabio Cassiano Nascimento +4 more
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50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2009
Rashid Abu Al-Rub, Sun-Myung Kim
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Rashid Abu Al-Rub, Sun-Myung Kim
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